Validation metrics for startups — signals that actually predict success

The core validation metrics

Search demand: Measures how many people actively search for solutions to this problem. High search volume indicates real, existing demand.

Competition density: How many competitors exist and how strong they are. High density with low differentiation is a risk signal.

Differentiation score: How clearly your idea stands out from existing alternatives.

Monetisation viability: Whether similar products successfully charge customers and what pricing models are standard.

Distribution difficulty: How hard it is to reach customers. High difficulty means expensive acquisition.

Audience clarity: Whether it is obvious who the customer is and what problem you solve.

How metrics combine into a score

Each metric feeds into one of 10 weighted categories. The categories combine into a weighted overall score out of 100, which maps to a Skip, Fix, or Ship verdict. This structure ensures consistency — the same idea always gets the same result.

Beyond the metrics

The metrics are a starting point. The real value is in understanding why each score is what it is, and what specific actions you can take to improve weak signals.

The five validation milestones every startup should hit

1. Problem validation — 10 buyers confirm the problem in their own words.
2. Solution validation — 5 buyers pay (pre-order or pilot) for the proposed outcome.
3. Channel validation — One repeatable channel produces 10 qualified leads.
4. Retention validation — 25%+ stick around or repurchase past 30 days.
5. Unit-economics validation — CAC is paid back within three months of a customer's lifecycle.